#150304
Closest named color: Very Dark Brown (#1D0200). oklch(13.7% 0.037 18.2), rgb(21, 3, 4).
Aa
White text reads best on this color (20.06:1).
About this color
#150304 is a very dark, muted red. In OKLCH its lightness is 14%, its chroma 0.037 and its hue 18°. Its hue sits on the warm side of the wheel. The nearest named color is Very Dark Brown (#1D0200), ΔE 0.025 away. White text reads best on it, at 20.06:1.
| Hue family | Reds |
| Lightness | very dark (14%) |
| Chroma | muted (0.037) |
| Temperature | warm |
| Nearest name | Very Dark Brown (#1D0200) |
| Black text | 1.04:1 |
| White text | 20.06:1 |
Values
| HEX | #150304 |
| RGB | rgb(21, 3, 4) |
| HSL | hsl(357, 75%, 5%) |
| OKLCH | oklch(13.7% 0.037 18.2) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #150304 | 20.06:1 | AAA | Lc -107.7 | Preferred for body text |
| Black text on #150304 | 1.04:1 | Fails | Lc 0.0 | Not readable |
| #150304 text on white | 20.06:1 | AAA | Lc 105.8 | Preferred for body text |
| #150304 text on black | 1.04:1 | Fails | Lc 0.0 | Not readable |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 950.
-
Step 50
50
#F9F4F4
oklch(97.1% 0.005 17.2)
-
Step 100
100
#F2E7E6
oklch(93.6% 0.012 23.7)
-
Step 200
200
#E9D3D3
oklch(88.5% 0.025 17.6)
-
Step 300
300
#DCB6B6
oklch(81% 0.044 18.1)
-
Step 400
400
#C98F90
oklch(70.7% 0.071 17.9)
-
Step 500
500
#BA7274
oklch(63% 0.091 18.2)
-
Step 600
600
#A55A5D
oklch(55.6% 0.098 18.2)
-
Step 700
700
#8D4A4D
oklch(49.2% 0.091 18.1)
-
Step 800
800
#733D3F
oklch(42.8% 0.076 18.4)
-
Step 900
900
#5D3435
oklch(37.7% 0.059 18.7)
-
Step 950
950 (this color)
#150304
oklch(13.7% 0.037 18.2)
#150304 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #060604 | 0.041 |
| Deuteranopia (no green cones) | #0B0904 | 0.036 |
| Tritanopia (no blue cones) | #180103 | 0.012 |
| Achromatopsia (no color) | #080808 | 0.038 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #150304
#150304
oklch(13.7% 0.037 18.2)
- #000B0C
#000B0C
oklch(13.6% 0.023 200.3)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #150304, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Very Dark Brown #1D0200 ΔE 0.025
- Almost Black #070D0D ΔE 0.050
- Rich Navy #001219 ΔE 0.074
- Dark Maroon #3C0008 ΔE 0.103
- Rich Black #0D1B2A ΔE 0.104
- Midnight #03012D ΔE 0.106
- Dark Navy Blue #00022E ΔE 0.111
- Very Dark Purple #2A0134 ΔE 0.113
Use #150304 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.